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Decorative coated particle and engineered stone containing such particles

a technology of decorative additives and coated particles, which is applied in the directions of natural mineral layered products, cellulosic plastic layered products, transportation and packaging, etc., can solve the problem of limiting factors in the incorporation of decorative additives

Inactive Publication Date: 2009-11-05
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However a limiting factor in the incorporation of a decorative additive is due to contact with heavy aggregates during manufacture of the final article.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

examples 1-5

[0032]

TABLE 1SampleGlassIDAdditive (Pigment)Pigment DescriptionColourEffect Produced1Afflair ® 9235Pastel Green Metallic PigmentClearUniform (solid) coloured glass particles2Afflair ® 9236Pastel Green Metallic PigmentGreenUniform (solid) coloured glass particles3Afflair ® 9504Burgandy Metallic PigmentClearUniform (solid) coloured glass particles4Afflair ® 9500 Bronze WRBronze metallic PigmentClearUniform (solid) coloured glass particles5Afflair ® 9500 Bronze WRBronze metallic PigmentBrownUniform (solid) coloured glass particles

The following materials are used.

¼×8 Mesh Glass (Clear, Brown or Green)

30×50 Mesh Fine Crushed Clear Glass

[0033]Valspar Promoted Quartz Casting Resin 5766C00012 with approximately 25% Styrene

Luperox 26M50 Peroxide

Siloquest A-174 Coupling Agent

[0034]Additive (pigment) as listed TABLE 1

Pour 100 grams of resin into a plastic container. Add 1 gram of both Luperox 26M50 and Siloquest A-174 to the resin and stir until mixed. To this mixture add 5 grams of additive p...

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Abstract

A coated decorative refractive particle contains a transparent coating and either reflective particles or refractive particles embedded in the coating. Also an engineered stone contains such coated decorative particles.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of Invention[0002]This invention is directed to a decorative coated particle preferably having abrasion resistance and to an engineered stone containing such particles.[0003]2. Description of the Related Art[0004]Engineered stone products may be produced by a well known procedure commercialized by Breton S.p.A. of Castello di Godego, Italy, so-called “Breton Stone”. In this technology, resin precursors are blended at low weight percentages with crushed stone aggregate to provide a relatively dry mass of material, distributed evenly on a support carrier, vibro-compacted under vacuum and then cured to yield a rigid product. A process used to practice this technology is disclosed by Toncelli in U.S. Pat. No. 4,698,010. Breton Stone materials are disclosed for use as flooring tile. Subsequent improvements to the technology, such as U.S. Pat. No. 6,387,985 to Wilkinson and Burchfield increased the uses of the material for general surfacing, parti...

Claims

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Application Information

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IPC IPC(8): B32B5/16
CPCC08K9/08Y10T428/25Y10T428/2991
Inventor BERGEVIN, KEVINREID, KIMBERLEY L.WILLIS-PAPI, JOCELYN M.
Owner EI DU PONT DE NEMOURS & CO
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